diff --git a/migrations/092_pax8_subscription_costs.sql b/migrations/092_pax8_subscription_costs.sql
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+-- PAX8 subscription cost columns.
+--
+-- PAX8's Subscription object (GET /subscriptions?page=&size=, Phase 11
+-- research, devx.pax8.com findsubscriptions) exposes both a customer/list
+-- `price` and a partner/reseller `partnerCost` per subscription, plus a
+-- `currencyCode`. Migration 091 did not model these — this migration adds
+-- them as additive columns on the existing pax8_subscriptions table (D-03).
+--
+-- Raw per-billing-period amounts are stored exactly as PAX8 returns them,
+-- paired with the existing billing_term column. Monthly normalization is a
+-- read-time concern, not modeled here (D-04).
+
+ALTER TABLE pax8_subscriptions
+  ADD COLUMN IF NOT EXISTS price NUMERIC(12,2);
+
+ALTER TABLE pax8_subscriptions
+  ADD COLUMN IF NOT EXISTS partner_cost NUMERIC(12,2);
+
+ALTER TABLE pax8_subscriptions
+  ADD COLUMN IF NOT EXISTS currency CHAR(3) NOT NULL DEFAULT 'USD';